Topic: Frozen Oil Filter bolt part deux

[Gene]

Hey y’all, been a while. I already looked at the available info re removing a socked-in oil filter bolt WITH A 13 MM HEAD, but aside from drilling it out or doing the reverse drill stick a socket it thing, any other ideas? Nobody in my neighborhood works on anything over 25 years old. This is 50. To be clear, 73 CB 750 (as I said, been awhile).

Any info helpful, hope everyone is still doing well and frankly, still alive✌️

[Bodi]

Ok.
The threads are soaked in oil, so rather unlikely to be seized.
The usual problem is in the hole where the bolt goes through... ouside the O-ring is "dry" but weather can get in. Rust and/or a reaction between the alloy and the steel bolt makes them pretty much one.
Heating the bolt cover around the hole then cooling the bolt with freeze spray, ice, water, whatever can loosen it enough to turn the bolt with a 13mm wrench, pipewrench, or visegrips. Probably ruin the bolt but so what. Some spirited tapping on the head with a hammer may help shock the rust loose.
Last ditch is to punch the centre of the bolt and work up through drill sizes until you get to almost the bolt diameter. Damaging the cover outside the O-ring groove may look bad but won't hurt its seal. Don't drill past there! And the bolt head hides the hole anyway. If you get close to the bolt size you should be able to use a small screwdriver or pick to collapse the shell of the bolt and then the cover will come off. The bolt stub should screw out with fingers.
Some antiseize on the last bit of the bolt under the head is a good idea.

[calj737]

Heat the bolt head, then install a socket on it and give it a few hearty whacks. Then turn it back and forth until it breaks free. The underside of the flange of the bolt has corroded against the cast aluminum housing. That's all.

[Tracksnblades1]

You may need to grind the chamfer completely off the 6 point socket you plan on using..
Some of them bolts have a large radius where the hex head of the bolt meets the washer part of the bolt.

[Deltarider]

I am not sure what you mean by a 'socked-in oil filter bolt' but know that usual tapping the bolt with a hammer does it. Either prior to applying the wrench or at the same time.

[BenelliSEI]

Give the bolt head one good smack with a +2 lbs. hammer before starting. Nice and square on the head. The ground down six point is a good idea to make sure you are right down over the bolt head with 100% engagement. Use a three foot bar and turn counter clockwise.

The only risk here is that a PO has crossed the bolt and driven it in with an impact gun (I have seen this). This can result in you actually snapping off the alloy “lug” the bolt screws into……. Good luck.

[bryanj]

Head should be 12mm, aftermarket frequently 17mm never seen a 13.
If its rounded find a 3/16 whitworth 12 point socket and hammer it on, never failed me yet.

HINT if replacing with aftermarket check that the relief valve is free with no burrs on the holes and the right way round, a respected member on uk forum has found several "wrong uns"

[Gene]

Appreciate it everybody. This one’s all my fault so I’ll try em all until one method works. Will update. Thanks again, hope everyone is well.

I have a new bolt ready,

[Jerry Rxman Griffin aka MuthaF'er]

All else failing, sawzall it. Replacements are everywhere.

[scottly]

Hi Gene! Is the head of the bolt rounded off? If so, weld a big nut on it.

[70CB750]

Hi Gene! Is the head of the bolt rounded off? If so, weld a big nut on it.

That^^^

Also the heat will help break it loose.   Done it to a bolt and now I have it as a backup. 

[ekpent]

I've also hammered a next size smaller (SAE also works at this point) over a knackered and rounded bolt head and got them off before if you don't have a welder handy.

[Gene]

! “Is the head of the bolt rounded off? If so, weld a big nut on it.”

Hey! Yep, rounded, slot cut in it, don’t have a welding kit but will try and even smaller socket and take another whack at it. Possible I just didn’t hit it hard enough. Need to pull out the big hammer. As someone once said, if you can’t fix it with a hammer, it’s an electrical problem.

Until last year I lived on the beach and the salt air is not kind.

[pekingduck]

I would get the closest fitting 3/8" drive socket, hammer it in place, ride it to a welding shop, (like one who does railings and such), and ask if they can arc weld it in place at least in spots.  Then you can remove the bolt and take it back and have them weld it on completely.  I brazed mine in place.

[grcamna2]

I would get the closest fitting 3/8" drive socket, hammer it in place, ride it to a welding shop, (like one who does railings and such), and ask if they can arc weld it in place at least in spots.  Then you can remove the bolt and take it back and have them weld it on completely.  I brazed mine in place.

I like it. 
Replace it with one that has a 17mm head on it.

[Deltarider]

[...]
Replace it with one that has a 17mm head on it.

But... that's an aftermarket product. I've heard there are some around which are not good. I still use the original, be it a friend has welded a bigger nut on it.

[bryanj]

Same with all pattern parts, some are as good as oe, some are even oe but others can be very bad, only takes a couple of minutes to remove the roll pin and chech the valve piston moves free and holes not burred on inside.
A well respected engine builder had a 500 engine with new oil pump from Honda that actually exploded the oil filter case, turned out the oil pressure valve in the pump was fitted backwards from the factory so diddnt work, moral even oe can be suspect

[Stev-o]

Need to pull out the big hammer...

Now your talkin'!!!

[Don R]

 I have a couple with the big nut welded on. You just need to use small bolt torque when re-installing.

[Gene]

Sorry for the delay in follow up, was out of town for a while, blah blah blah.

Anyway, ended up drilling a hole and hammering in an easy-out. Not nearly as easy as it was in my head but did eventually turn and come loose. New bolt w a 17 head. Life is good. Can’t thank you all enough. Totally my fault, let it sit too long since I wasn’t riding regularly. And yeah, a friend with experience helped. Don’t be afraid to call those people if you know them.